Christine Parent, Hélène Rolin, Kokou Yétongnon, Stefano Spaccapietra. An ER Calculus for the Entity-Relationship Complex Model. In Frederick H. Lochovsky, editor, Entity-Relationship Approach to Database Design and Querying, Proceedings of the Eight International Conference on Enity-Relationship Approach, Toronto, Canada, 18-20 October, 1989. pages 361-384, North-Holland, 1989. [doi]
@inproceedings{ParentRYS89, title = {An ER Calculus for the Entity-Relationship Complex Model}, author = {Christine Parent and Hélène Rolin and Kokou Yétongnon and Stefano Spaccapietra}, year = {1989}, researchr = {https://researchr.org/publication/ParentRYS89}, cites = {0}, citedby = {0}, pages = {361-384}, booktitle = {Entity-Relationship Approach to Database Design and Querying, Proceedings of the Eight International Conference on Enity-Relationship Approach, Toronto, Canada, 18-20 October, 1989}, editor = {Frederick H. Lochovsky}, publisher = {North-Holland}, isbn = {0-444-88716-4}, }